Specifications:
Item Brand: Gemfan
Item No.: Gemfan Flash 2540
Color: Transparent
Material: PC
Hub thickness: 5mm
Each Weight: 0.98g
Middle Mounting Hole: 1.5mm
Other Mounting Hole: 2mm
Diameter: 2.5 Inch/63.5mm
Hub Diameter: 9.2mm

Package Included:
2540 3-Blade Propeller 2.5inch Triblade Props x 4CW
2540 3-Blade Propeller 2.5inch Triblade Props x 4CCW